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CRBS Series Crossed Roller Bearings - High Precision and High Stability

CRBS Series Cross Roller Bearings

CRBS series cross roller bearings are high-precision bearings that are mainly used in applications that require high rigidity and stability. The internal rollers are arranged crosswise in both vertical and horizontal directions to provide uniform load distribution and enhance rigidity. Suitable for bearing high radial and axial loads, widely used in robots, machine tools, automation equipment and other fields. Reduce energy loss, improve mechanical efficiency and extend equipment life. The design is compact and suitable for application environments with limited space.

Product Details

CRBS series cross roller bearings are high-performance bearings that are widely used in situations that require high rigidity, high precision and composite load-bearing capacity, such as industrial robots, rotating platforms, DD motors, etc. The following is a detailed introduction to the CRBS series cross roller bearings:

1. Design features

Uniform cross-section thin-walled structure: The axial and radial cross-section dimensions of the CRBS series cross roller bearings are designed as smaller uniform cross-sections. This thin-walled structure enables the bearings to provide excellent performance in a compact space.

Cross roller arrangement: The rollers inside the bearing are arranged in a cross-shaped manner. This design enables the bearings to simultaneously withstand multi-directional loads such as axial, radial and overturning moments.

Integral inner and outer rings: The inner and outer rings of the CRBS series bearings are both integral structures, which can be used for both inner and outer ring rotations, providing a flexible installation method.

2. Performance advantages

High rigidity: Due to the unique structural design and high-quality material selection, the CRBS series bearings have high rigidity and can ensure the stable operation of the equipment.

High precision: After precision machining and strict quality control, the CRBS series bearings have high rotation accuracy and can meet the needs of high-precision applications.

Composite load-bearing capacity: The arrangement of the cross rollers enables the bearing to bear multi-directional loads independently, which improves the bearing's load-bearing capacity and service life.

3. Models and sizes

CRBS series cross roller bearings are available in a variety of models and sizes to meet the needs of different applications. For example, models such as CRBS808 and CRBS1408V correspond to different inner diameters, outer diameters and height dimensions.

4. Parameter

Shaft dia.
mm
Identification Number Boundary Dimensions mm Mounting Dimensions  mm
CRBS
With Cage
CRBS…AUU
With Separator
CRBS…V CRBS…VUU
Full Complement
Mass (Ref.)
g
With Cage
Open Type
With Separator
Seald Type
Full Complement
Open Type Seald Type d D B
(1)
r min
d a Da Basic Dynamic Load Rating C N Basic Static Load Rating C 0 N Basic Dynamic Load Rating C N Basic Static Load Rating C 0 N Basic Dynamic Load Rating C N Basic Static Load RatingC 0 N
50 CRBS508 CRBS508AUU CRBS508V CRBS508VUU 50 66 8 0.4 54 61 4,900 6,170 4,680 5,810 6,930 9,800 84
60 CRBS608 CRBS608AUU CRBS608V CRBS608VUU 60 76 8 0.4 64 71 5,350 7,310 5,350 7,310 7,600 11,700 94
70 CRBS708 CRBS708AUU CRBS708V CRBS708VUU 70 86 8 0.4 74 81 5,740 8,440 5,740 8,440 8,190 13,600 108
80 CRBS808 CRBS808AUU CRBS808V CRBS808VUU 80 96 8 0.4 84 91 6,130 9,590 6,130 9,590 8,790 15,500 122
90 CRBS908 CRBS908AUU CRBS908V CRBS908VUU 90 106 8 0.4 94 101 6,490 10,700 6,490 10,700 9,310 17,400 135
100 CRBS1008 CRBS1008AUU CRBS1008V CRBS1008VUU 100 116 8 0.4 104 111 6,850 11,900 6,530 11,100 9,850 19,300 152
110 CRBS1108 CRBS1108AUU CRBS1108V CRBS1108VUU 110 126 8 0.4 114 121 7,160 13,000 6,850 12,300 10,300 21,200 163
120 CRBS1208 CRBS1208AUU CRBS1208V CRBS1208VUU 120 136 8 0.4 124 131 7,530 14,100 7,070 13,000 10,900 23,000 184
130 CRBS1308 CRBS1308AUU CRBS1308V CRBS1308VUU 130 146 8 0.4 134 141 7,860 15,300 7,270 13,800 11,200 24,600 199
140 CRBS1408 CRBS1408AUU CRBS1408V CRBS1408VUU 140 156 8 0.4 144 151 8,060 16,400 7,510 14,900 11,700 26,800 205
150 CRBS1508 CRBS1508AUU CRBS1508V CRBS1508VUU 150 166 8 0.4 154 161 8,350 17,500 7,810 16,000 12,100 28,700 220
160 CRBS16013 CRBS16013AUU CRBS16013V CRBS16013VUU 160 186 13 0.6 166 179 20,300 39,900 19,400 37,700 26,900 58,200 620
170 CRBS17013 CRBS17013AUU CRBS17013V CRBS17013VUU 170 196 13 0.6 176 189 20,900 42,200 20,000 39,900 27,800 61,600 675
180 CRBS18013 CRBS18013AUU CRBS18013V CRBS18013VUU 180 206 13 0.6 186 199 21,500 44,600 21,900 45,700 28,600 65,200 710
190 CRBS19013 CRBS19013AUU CRBS19013V CRBS19013VUU 190 216 13 0.6 196 209 22,100 46,900 22,900 49,200 29,300 68,600 740
200 CRBS20013 CRBS20013AUU CRBS20013V CRBS20013VUU 200 226 13 0.6 206 219 22,500 49,300 23,300 51,600 30,000 72,200 780
5. Application areas

Industrial robots: CRBS series bearings are widely used in the joints or rotating parts of industrial robots, providing stable and high-precision motion support for robots.

Rotating platforms: On platforms that require high-precision rotation, CRBS series bearings can ensure the smooth operation and precise positioning of the platform.

DD motors: Due to their high rigidity and high precision, CRBS series bearings are also often used as support components for direct drive (DD) motors.

6. Precautions

When selecting CRBS series cross roller bearings, comprehensive consideration should be given to factors such as specific application scenarios, load requirements, and speed requirements.

During installation and use, the installation guide and instructions provided by the manufacturer should be strictly followed to ensure the normal operation of the bearings and extend their service life.

Regularly inspect and maintain bearings to detect and address potential problems in a timely manner and avoid failures.